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Online flashcard maker that turns your PDFs and notes into cards

Upload a PDF, slide deck, set of notes or a photo of a page. DeckOwl drafts flashcards from your own material and schedules reviews with spaced repetition.

Create flashcards nowFree · No credit card required

Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free account · 3 sets a month · Creates flashcards in seconds

How a flashcard maker fits into your study routine

Most students who need a flashcard maker already have the material: lecture slides, a textbook chapter, or a page of handwritten notes. A tool that reads those files and drafts cards from them saves the slow part of making cards by hand, which is pulling out the key terms in the first place.

Start from the exact pages or slides your instructor assigned
Edit or delete any generated card before you study it
Review on a schedule instead of rereading the same notes
Export to Anki or a file if you want to study outside the browser (Plus)

Example cell biology flashcards

Which organelle produces most of a cell's ATP?The mitochondrion, through cellular respiration.

What is the function of ribosomes?They synthesize proteins by translating mRNA.

What does the Golgi apparatus do?It modifies, sorts and packages proteins and lipids for transport.

How do prokaryotic and eukaryotic cells differ?Eukaryotic cells have a membrane-bound nucleus and organelles, while prokaryotes lack both.

What is osmosis?The diffusion of water across a semipermeable membrane toward the side with higher solute concentration.

Generate the full set

Works from your own files

Upload PDF, DOCX, PPTX, plain text or images. Photos of pages are read with text recognition.

Spaced repetition built in

Cards you find hard come back sooner, and cards you know move further out in your review schedule.

Study in the browser

The free plan lets you review cards online with 3 generations per month. Paid plans add exports to PDF, DOCX, Anki and CSV.

How it works

Upload your material

Add lecture slides, a textbook chapter, typed notes or a photo of handwritten pages.

Review the generated cards

Check the questions and answers, edit anything unclear, and remove cards you do not need.

Study on a spaced schedule

Review each day and let the schedule bring back the cards you are most likely to forget.

The cards are only useful if you review them, so the schedule matters as much as the wording. Spaced repetition shows you the cards you miss more often and spaces out the ones you already know, so your study time goes where it is needed.

You can start with the free plan and study in the browser. If you want to move cards into Anki or keep copies as PDF, DOCX or CSV files, the Plus plan includes those exports.

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Frequently asked questions

How many flashcards should I make for a cell biology unit?

Start with the key terms and concepts from each lecture or chapter rather than every sentence. A focused set of cards per unit is easier to review consistently than a large set of weak ones.

What makes a good flashcard for studying?

Each card should test one idea, with a clear question on the front and a short answer on the back. Cards you keep missing are worth rewriting into a simpler question.

Can I export my flashcards?

Yes, on the Plus plan ($99.90/year or $9.99/month), which includes PDF, DOCX, Anki and CSV export. The free plan lets you study in the browser without exports.

Do I need a credit card to start?

No. You can start on the free plan with 3 generations per month, and students get 40% off with a school email.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.